【#北京地铁11号线二期线路方案公布#】#北京11号线二期将向东延伸#5月1日，北京市基础设施投资有 限公司官网对《北京轨道交通11号线二期线路一体化规划方案》进行了公示。11号线二期在一期工程基 础上向东延伸，途经石景山、丰台、海淀、西城四个行政区，共设14座车站，其中，将在北京西站、丽 泽商务区等地设置5座换乘站。北京轨道交通11号线二期，是国家发展和改革委员会批复的本市轨道交 通第三期建设规划项目之一，是既有11号线一期工程向东的延伸线，途经石景山、丰台、海淀、西城四 个行政区。项目的建设，可改善沿线地区对外出行条件，提供快速、大容量、公交化的轨道交通服务。 11号线二期西起一期终点新首钢站（不含），东至丽泽商务区站，途经新首钢高端产业综合服务区南 区、北京西站、丽泽金融商务区等城市重要功能节点。线路主要沿规划二型材南路、人民渠路、莲石东 路、鲁谷大街、吴家村路、大成路、莲花池西路、马连道路等道路敷设，全长约18.3公里，均为地下 线，共设14座车站。在石景山区设置车辆基地1座，位于新首钢高端产业综合服务区南区内，占地约 33.8公顷。11号线二期规划方案示意图显示，该线的14座车站自西向东分别为型材、 ...

Core Points - The Beijing Subway Line 11 Phase II has made significant progress with the release of an integrated planning scheme by the Beijing Investment Company [1][3] - The line will extend approximately 18.3 kilometers from the new Shougang Station to the Lize Business District Station, featuring 14 stations, including 5 transfer stations [1][4] Infrastructure Development - The Phase II project is part of the Beijing Rail Transit Phase III planning, which includes 11 new lines, with rapid construction progress on Line 1 branch and M101 line [3] - The construction of Line 11 Phase II aims to improve transportation conditions in the surrounding areas, providing fast, high-capacity, and public transport-like services [3][4] Technical Specifications - The technical standards for Line 11 Phase II will be consistent with Phase I, with a maximum design speed of 100 kilometers per hour [4] - The line will be entirely underground and will include a vehicle base located in the southern area of the new Shougang High-end Industry Comprehensive Service Zone, covering approximately 33.8 hectares [4][5] Planning Adjustments - The length and number of stations for Line 11 Phase II have undergone several adjustments, with the current plan showing a length of 18.3 kilometers and 14 stations, differing from earlier proposals [5] - The stations will include key locations such as Beijing West Station and Lize Financial Business District, with the names being provisional [5] Public Engagement - The public consultation for the planning scheme will be conducted online, with a 30-day period for feedback starting from May 1, 2025 [5]

Core Points - The "Electric Pioneer" TBM (Tunnel Boring Machine) has commenced operation, marking the start of the shield tunneling phase for the Chongqing Rail Transit Line 7 Phase I project, which spans approximately 28 kilometers and includes 18 stations [1][2] - The project aims to enhance the north-south transportation capacity in Chongqing, connecting various urban clusters and facilitating transfers with existing and under-construction rail lines [2] Group 1: Project Overview - The Chongqing Rail Transit Line 7 Phase I will connect key areas such as Xiyong, Hangu, and Jinfeng, with a total length of about 28 kilometers and 18 stations [1] - The tunneling section includes a 3.3-meter shallow cover segment and a challenging 1,332-meter segment with a 38‰ gradient, requiring significant engineering solutions [1] Group 2: Technical Specifications - The "Electric Pioneer" TBM has a working length of 85 meters, a diameter of 6.84 meters, and weighs approximately 500 tons, with a main drive power of 945 kW and a maximum thrust of 4,344 tons [2] - The TBM is designed to achieve an average daily advance rate of 9 to 12 meters while performing excavation, support, and ventilation tasks [2] Group 3: Engineering Innovations - The construction team has implemented 3D simulation technology for advanced planning and developed an intelligent control system for real-time data analysis to ensure efficient tunneling [1] - A special wear-resistant layer with a shear strength exceeding 350 MPa has been added to the TBM's cutting tools to enhance durability against hard rock formations [1]

Core Viewpoint - The successful breakthrough of the right-line shield machine in the Taihu Road Station to Station Front Avenue Station section marks the completion of the first dual-line connection using new energy segments for the Qingdao Metro Line 8 branch [1][5]. Group 1: Project Overview - The Taihu Road Station to Station Front Avenue Station section is 1,465.9 meters long, starting from Taihu Road Station and traversing complex environments including residential areas, factories, and under various infrastructures [3]. - The construction faced challenges such as soft ground above and hard ground below, as well as the need to navigate under rivers, roads, and gas pipelines [3]. Group 2: Technological Innovations and Safety Measures - The project team implemented new energy segments to address underground thermal pollution while providing heating and cooling sources for surrounding buildings [5]. - Advanced geological forecasting was conducted to adapt construction strategies, ensuring safe and smooth shield tunneling through the use of information monitoring and data analysis [5]. - Safety measures included the installation of anti-slippage devices and emergency platforms, enhancing operational safety and emergency management [5]. Group 3: Future Plans and Goals - The project team aims to scientifically coordinate efforts, focusing on key milestones to accelerate the construction of the interconnecting passage [5]. - Continuous technical innovation and strict quality control will be prioritized to ensure high standards in the ongoing construction of the Line 8 branch, contributing to the upgrade of Qingdao's urban rail transit network [5].

Core Viewpoint - The construction of the Jinan Metro Line 9 is progressing rapidly, with significant milestones achieved, including the completion of the main structure of the Huashandong Road Station, marking a transition to the auxiliary structure phase [3][10]. Group 1: Project Overview - The Jinan Metro Line 9 spans 15.7 kilometers, connecting 12 underground stations from Huanghe South Station to Maozhuang Station, enhancing urban connectivity and travel efficiency [9]. - The Huashandong Road Station features a two-level underground island platform, measuring 294.6 meters in length, constructed using an open-cut method [6]. Group 2: Construction Techniques and Innovations - The construction team employed innovative techniques to address challenges such as low winter efficiency and water-rich soil, utilizing a combination of "bored pile + jet grouting pile" for water barrier construction [6]. - To reinforce the soil in the 197-meter backfill area, sleeve valve grouting technology was applied, along with the installation of steel supports, ensuring construction safety through a "double insurance" strategy [6]. Group 3: Environmental Considerations - The construction team is committed to green development, optimizing construction schedules to minimize nighttime work and implementing measures to reduce noise pollution and dust [8]. Group 4: Future Implications - The completion of Line 9 is expected to significantly improve travel efficiency for citizens and stimulate development in key areas such as Huashan and Xindong stations, contributing to the high-quality growth of Jinan [9][10].